[mod_python] can't seem to expire a cookie value

Matt Barnicle mattb at wageslavery.org
Tue Jan 22 00:32:45 EST 2008


well now i've ditched my current effort and decided to take a different
tact and added another cookie var to maintain login state rather than
trying to expire user_name.  i just couldn't spend any more time on this
thing right now i've got a lot of pressing things to take care of...  in
my code updates i noticed the 'path' attribute..  when i sign out, the
sign out link is /user/signout, and it looks like it was adding those
cookie vars to the '/user' path, which i didn't understand at all
previously..  *sigh*  so i think that is the real problem here.  i didn't
investigate it bc like i said i had to move on and come up with another
solution..  thanks so much for your attention and help..

- [email protected]

> What Cookie header gets sent by the browser on the request after you
> have tried to expire it. Ie., dump out values of req.headers_in form
> request handler to see what is passed in.
>
> Graham
>
> On 22/01/2008, Matt Barnicle <mattb at wageslavery.org> wrote:
>> ok i installed the extension and captured some data..  here is what the
>> header looks like when i click the signout button:
>>
>> Set-Cookie: user_name=matt; expires=Mon, 22-Jan-2007 01:54:01 GMT
>>
>> then when i go back to the home page, my code reads the cookies to see
>> if
>> the cookie called 'user_name' exists, and if so, logs me in and resets
>> the
>> cookies:
>>
>> if cookies.has_key('user_name'):
>>         cookie = Cookie.Cookie('user_name', user_name)
>>         cookie.expires = time.time() + 31536000
>>         Cookie.add_cookie(self.req, cookie)
>>
>> i thought maybe i need to check the expiry date of the cookie, so i
>> tried
>> that with the following code:
>>
>>         self.req.write(str(cookies['user_name']) + '<br>\n')
>>         self.req.write('expires: ' + cookies['user_name'].expires +
>> '<br>\n')
>>
>> but that throws the following error:
>>
>>         File "/usr/lib/python2.5/site-packages/mod_python/Cookie.py",
>> line 93,
>>         in get_expires
>>                 return self._expires
>>
>>         AttributeError: _expires
>>
>> - [email protected]
>>
>> > Have you checked what the actual cookie header returned to the browser
>> > is and verified that what is in it is what you expect? Post the value
>> > of the header here so we can see it.
>> >
>> > Use FireFox live headers extension to see value of header, or in your
>> > mod_python code output to error log file the output of req.headers_out
>> > or req.err_headers_out to see what it is.
>> >
>> > Graham
>> >
>> > On 22/01/2008, Matt Barnicle <mattb at wageslavery.org> wrote:
>> >> > 21 January 2008 Monday 10:49:57 tarihinde Matt Barnicle þunlarý
>> >> yazmýþtý:
>> >> >> understand it, if i want to effectively remove a cookie from the
>> UA,
>> >> there
>> >> >> is no way to do it, so u just have to set the expiry date to a
>> time
>> >> in the
>> >> >> past, right?  but any efforts i make seem to fail.  here is the
>> code:
>> >> >>
>> >> >> cookie = Cookie.Cookie('user_name', cookies['user_name'].value)
>> >> cookie.expires = int(time.time()) - 31536000 # minus 1 year from now
>> >> Cookie.add_cookie(self.req, cookie)
>> >> >
>> >> > Might be a problem of using int(), examples in the mod_python
>> >> > documentation don't use int():
>> >> >
>> >> > http://www.modpython.org/live/current/doc-html/pyapi-cookie-example.html
>> >>
>> >> i first tried it exactly like in the docs, then i tried int bc i know
>> >> the
>> >> official way to do it is to use int seconds since GMT...  i also
>> tried
>> >> splitting time.time() on the period, and taking the int value of the
>> >> first
>> >> bit.  anyways it works ok when i log in then i check my cookies using
>> >> firefox web developer toolbar, it just doesn't seem to want to expire
>> >> the
>> >> cookie when i use this method..
>> >>
>> >> - [email protected]
>> >>
>> >>
>> >>
>> >> _______________________________________________
>> >> Mod_python mailing list
>> >> Mod_python at modpython.org
>> >> http://mailman.modpython.org/mailman/listinfo/mod_python
>> >>
>> >
>>
>>
>>
>




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